Fit out installation work has been carried out inside 400 HZ pit without personal atmospheric monitoring devices for the entrants, ventilation duct was not properly placed deep into the pit and the attendant and supervisor was observed sitting on the leading edge of pit opening, inside the guardrail system and emergency contact details were not displayed. A calibrated gas detector was available with the attendant and monitoring was carrying out in 30 minutes interval. CMA temporarily suspended the activity, conducted a safety briefing on confined space safety requirements and advised L&T to provide personal atmospheric monitoring devices to the entrants and to improve the risk controls.
Hazard category: Confined Spaces